aim- i plan on getting the sct before i even install all the stuff. i mean i know the tune probably wont be perfect, but hemifever can send me another one or two after i get it up and running. and i have been doing alot of research lately and there are alot of dakota fast trucks using the cometics with the alum heads with good luck. and when running boost, i am pretty sure you want to keep your compression on the low side.

cptafw163-i already have the 1.7's.mods in sig. thats why i got the cam i did. so i could still keep them since they only have around 6k on them. and i have seen your posts on them and i really wasnt that impressed with the 1.7's. i mean there was a little gain there but not that much to brag about i didnt think.

i was kinda hoping rm-indy would chime in too. i know he is running these heads.

 

and i see that the ports on the edel heads are matched to the rpm intake. i wonder if they are the same as the ports on the hughes air gap that i have since its made by edelbrock too? trhat would be a nice bonus to getting the eddies.

 

hey how could i bump my compression on my 318? i wouldnt mind having 10.4:1 and get some more ***** out of it lol, what heads would you guys suggest, i have a hughes air gap manifold and i wana do 1.7's or keep the 1.6's and get a mild cam.

 

edit: oops repeat

 

you are talking about a complete engine overhaul. or something like a stroker.

 

You'd need new pistons to push the compression that high. You can mill the heads down to bump the compression a bit, or use thinner head gaskets, but you might have to change pushrod length as well, and you definitely need a tuning solution if you start tinkering too high.

 

I'd like to consider the thinner gasket. How does one determine whether accompanying pushrod length changes would be in order?

When I went from 11.5:1 to 13.5:1 piston s on my bike I was suprised to learn that jetting stayed the same. I guess it's since the higher comp piston isn't changing amt of flow. A new ignition map could be necessary to prevent detonation though if you can't afford the good gas.

 

damn i just got a new motor to lol, im not guna go tearing into a brand new motor like that. i would like to have a lil bit more compression though

 

well after losts and lots of research gonna go with the clearwater 2.02's. the edelbrocks will not allow me to use my non adjustable 1.7's. and i am not wanting to buy new rockers. plus i want that extra lift that they are gonna give me with the new cam. thats why i got the cam i did.

 

you cant run clearwater heads with 1.7 HS?